The "acronym" link navigates to the latest version of the specification, this link changes whenever a new version of the specification is published.
The "Version" link navigates to the specific version.

Name Acronym Version Status Publication Date
Total: 3
Lexicon Query Service LQS 1.0 formal June 2000
Person Identification Service PIDS™ 1.1 formal April 2001
Resource Access Decision RAD 1.0 formal April 2001